David Brown 770 Selectamatic VS Allis Chalmers 4W-305 specs comparison

David Brown 770 Selectamatic
General InfosMake | David Brown |
Model | 770 Selectamatic |
Country | United states |
Production | From 1965 Until 1970 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | David Brown 770 Selectamatic Manual |
Dimensions, sizes and tires
AG front tires | 5.50-16 |
AG rear tires | 11.2/10-28 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 3110 lbs or 1410 kg |
Length | 112.5 inches [285 cm] |
Width | 64 inches [162 cm] |
Height | - |
Wheelbase | 75 inches [190 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 48/52/56/60/64/68/72/76 inches |
Front tread size | 48/52/56/60/64/68/72/76 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 146.1 ci or 2.4 L |
Cylinders | 3 cylinders |
Engine power | 36 hp or 26.8 kW |
Engine RPM | 2055 (rpm) |
Torque | 100 lb-ft or 135.6 Nm | Torque RPM | 1400 (rpm) |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 11.4 gal or 43.1 L |
Oil capacity | 7.8 qts or 7.4 L |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | David Brown 770 Selectamatic Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | 96 amps |
Cold Amps | - |
Ground force | negative |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | gear |
Trans gears | 12 forward and 4 reverse |
Clutch system | dry disc |
Wheel drive | 4x2 2WD |
Final drive | spur gear |
Steering | manual |
Braking system | mechanical drum |
Cabin type | Open operator station |
Differentiel lock | mechanical rear |
System | open center |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2000 psi or 137.9 bar |
Max flow | - |
Drawbar type | - |
Claimed power | 27.5 hp or 20.5 kW |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 32 hp or 23.9 kW |
Real power | - |
Engine @RPM | 540@1620 (rpm) |
PTO Clutch | - |
Rear PTO | live |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | position and draft control |
Rear hitch | I |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |

Allis Chalmers 4W-305
General InfosMake | Allis Chalmers |
Model | 4W-305 |
Country | United states |
Production | From 1982 Until 1985 |
Price | 93,685 USD |
Tractor type | Four wheel Drive (4WD) tractor |
Fuel | diesel |
Service repair manual | Allis Chalmers 4W-305 Manual |
Dimensions, sizes and tires
AG front tires | 18.4-38 |
AG rear tires | 18.4-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 21,826 lbs or 9900 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 126 inches [320 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 731 ci or 12.0 L |
Cylinders | 6 cylinders |
Engine power | 305 hp or 227.4 kW |
Engine RPM | - |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 200 gal or 757.0 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | - |
Parts And Accessories | Allis Chalmers 4W-305 Parts |
Batteries number | - |
Batteries voltage | - |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | - |
Trans gears | 20 forward and 4 reverse |
Clutch system | - |
Wheel drive | 4x4 articulated 4WD |
Final drive | - |
Steering | - |
Braking system | - |
Cabin type | standard |
Differentiel lock | - |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 254 hp or 189.4 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | - |
Rear hitch | III,IV |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- David Brown provided us with the latest version of its 770 Selectamatic service repair manual
- Find All mechanical and electrical parts and accessories of David Brown 770 Selectamatic farm-tractor here
- Get your Allis Chalmers 4W-305 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers 4W-305 farm-tractor here